/*
 * The contents of this web application are subject to the Mozilla Public License Version 
 * 1.1 (the "License"); you may not use this web application except in compliance with 
 * the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/.
 * 
 * Software distributed under the License is distributed on an "AS IS" basis, 
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
 * for the specific language governing rights and limitations under the License.
 * 
 * The Original Code is owned by and the Initial Developer of the Original Code is 
 * Composite A/S (Danish business reg.no. 21744409). All Rights Reserved
 * 
 * Section 11 of the License is EXPRESSLY amended to include a provision stating 
 * that any dispute, including but not limited to disputes related to the enforcement 
 * of the License, to which Composite A/S as owner of the Original Code, as Initial 
 * Developer or in any other role, becomes a part to shall be governed by Danish law 
 * and be initiated before the Copenhagen City Court ("K�benhavns Byret")            
 */

using System.IO;


namespace Composite.Data.Streams
{
    /// <summary>    
    /// </summary>
    /// <exclude />
    [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
    public sealed class CachedMemoryStream : MemoryStream
    {
        private byte[] _data = null;



        /// <exclude />
        public byte[] Data
        {
            get { return _data; }
        }



        /// <exclude />
        public override void Close()
        {
            SaveData();

            base.Close();
        }



        /// <exclude />
        protected override void Dispose(bool disposing)
        {
            SaveData();

            base.Dispose(disposing);
        }



        private void SaveData()
        {
            if (_data == null)
            {
                this.Seek(0, SeekOrigin.Begin);

                _data = new byte[this.Length];

                this.Read(_data, 0, (int)this.Length);
            }
        }
    }
}
